Special Containment Procedures:
SCP-3061 is to be kept in a standard containment cell with a diameter of 10.0 M in width, 10.0 M in length and 5.5 M in height at Site-13 in Southern Ontario. Also to be kept on Floor 3. The "Mind Killer" requires at the bare minimum, one source of entertainment or decoration (window, painting etc.). If the object isn't good enough for SCP-3061, it will deny observing it and will not count as a decoration object for him, if it's too pretty SCP-3061 will also deny it so preparation of the containment cell for SCP-3061 will be fairly difficult. Due to wasting hours of time searching for the correct objects, scientists set up a secret projector in the wall to match that of a window and a painting, so far, SCP-3061 is not mad. Also requires an illuminated containment chamber, minimum of two light sources activated at once. Recommended to only be managed by staff Level 3-5.

In case of breach, immediately evacuate the area in close proximity to it's containment cell. Tranquilizing and guns are completely pointless to slow down SCP-3061 but recent research shows that water is the entity's weakness and causes SCP-3061 to go into a dormant state. A new restroom is being established near the containment room in case of breach so quick elimination tranquilization could occur.

Description:
Resemblance/Forms:
SCP-3061 stands at approximately 2.8 M tall and SCP-3061 has a total of three forms, Insane, Neutral and Harmless. In Harmless form, it takes on the form of a scientist. This form is completely random, it can unpredictably change forms into anyone else. In this state, SCP-3061 can not attack but quite the opposite, help. If the entity finds someone in need it will aid them until his help is no longer needed.

In Neutral Form, SCP-3061 takes on it's true form. This resembles a pale grey or white humanoid figure with blue glowing eyes. At this point it is completely unknown what mood will occur next due to SCP-3061's unpredictable mood swings. Neutral State is similar to the Fine mood, it's recommended to give SCP-3061 what ever it demands next to prevent Hostile/Insane mode.

Insane mood causes a thick, black, mud-like substance to spawn over the skin of SCP-3061. Still unknown how this fluid is made or what it is. Subjects also claim the entity to have menacing and luminescent red eyes. This is a very dangerous state due to hostility. Low light levels can increase hostility and speed even when in Neutral and Harmless mode.

Demands:
SCP-3061's demands are easy to handle in the way that they are simple and can be completed with even the least skilled of staff:
◾-Food: SCP-3061 requires 3 meals a day like humanoids: For Breakfast: Cereal, Lunch: Simple Sandwich, Dinner: Raw Pork
◾-Water/Drinks: SCP-3061 can only drink simple Water or Apple Juice without being poisoned.
◾-Entertainment: A book or a set of cards would amuse SCP-3061 for days.
◾-Decoration: As explained earlier, a window or a painting is perfect for SCP-3061 demand of decoration.

SCP-3061 is refusing the fact that he is in a prison and he's a prisoner so proper care is necessary.

Method of Elimination:
SCP-3061 doesn't only eliminate humans but all other species of living organisms. 89% of elimination methods are classified due to [DATA EXPUNGED]. Primary methods of elimination for humanoids are fascinating in the way that, the entity attacks when direct eye has been lost. Class D surviving subjects claim that when they blink or rest that they see SCP-3061 in their mind. Currently unknown why they claim 'see him in their mind' but analysis of corpses from dead subjects show that some mental functions have been disabled from a mud-like substance similar to SCP-3061's mud-like material on his skin during Hostile mode. He can only attack if your eyes are shut (previously mentioned) but you must've seen this entity before it can attack. Other research shows that [DATA EXPUNGED] causes extreme [DATA EXPUNGED] and death mostly from suicide.

SCP-3061 has recently changed his habits of elimination extremely by this mean: he soaks his target with his mysterious substance turning the target into SCP-3061-1. Soon after soaking, the target's goo commences a period of goo mutation where the substance turns a red-pink color and soon turns toxic and quickly poisons SCP-3061-1. Previous means of elimination is still in use, but less common then this new method. 40% of subjects turn into SCP-3061-2 which is an exact clone of SCP-3061. SCP-3061-2 will be terminated on sight. Unsure if water eliminates SCP-3061-2.

Additional Information:
◾SCP-3061 is slowed down by being monitored by cameras, camera flashes count too.
◾[DATA EXPUNGED] makes SCP-3061 more powerful.
◾SCP-3061 has been scanned and has a bone structure similar to that of a human.
◾Once SCP-3061 is in human form, the only way to tell he's SCP-3061 is he only wears black/grey.

Appendix A:
Health and SCP-3061's Effects:
If subjects manage to survive SCP-3061's attacks, they will experience extreme headaches and can possibly fall into a coma. Muscles become weak and bones begin to shrink. Physical appearance reforms to resemble that of a skinless human. Class-D subject SCP-3061-MANO4 managed to escape SCP-3061 and the effects quickly kicked in. SCP-3061-MANO4 experienced extreme headaches and their skin quickly began to deform, it ended in 4 minutes and 23 seconds. 9 minutes later [DATA EXPUNGED]. 14 minutes later he pretty much was a skeleton. Tests reveal that the brain of SCP-3061-MANO4 reveal that the blood had been replaced with SCP-3061's mud-like substance. Shortly later, SCP-3061-MANO4 died from radiation, suffocation and muscle loss unknown reasons. We believe the goo came from [DATA EXPUNGED], but much remains unexplained and unknown.
Appendix B:
Origin of SCP-3061:
2015/9/13███ ████ ████ citizen reported a black substance on the floor of her office.
2015/9/14 Substance analysed by scientist, research began to find origin of substance.
2015/9/26 SCP scientists took over research.
2015/9/26 Previous scientists' memory wiped.
2015/10/14 Found origin of goo, placed in special containment (Site [DATA EXPUNGED] Floor 9).
2016/1/1 SCP-3061 discovered, placed in mini-cell.
2016/1/7 3 cleaners found dead in SCP-3061's cell, corpses scanned.
2016/1/7 Found SCP-3061's substance in cleaners' brains.
2016/2/1 Researchers figured out SCP-3061's demands.
2016/2/2 SCP-3061's demands have been fulfilled.
2016/3/1 SCP-3061 had testing occur in his cell, 10 Class-D subjects were apart of testing.
2016/3/1 6 subjects survived the testing and were soon scanned
2016/3/9 SCP-3061's cell is off limits due to another incident
2016/3/12 Now on, SCP-3061 is to be taken extra care of and will forever remain in Happy Mode
(Unless a breach were to occur, causing holographic windows/paintings to fail)
To Be Planned:
2016/4/12 Washroom will be established near cell of SCP-3061
Important Message:
WARNING: LEVEL 5 STAFF AND ABOVE ONLY CAN CONTINUE READING WITHOUT EXECUTION
Canadian Government is commanding us to close down Site 13 or else the site will be nuked. Transferring all equipment, SCPs and staff members to Site 13-B in the Rocky Mountains. Warheads will go off at Site 13-A in 2017, providing the SCP Company enough time to transfer everything over to Site 13-B. SCP-3061 is not permitted to be sent with other SCPs in SCP-Transfer Truck-A but in SCP-Transfer Truck-B, holographic window must be set up in Truck-B to prevent SCP-3061's escape. Solar panels must be set up to provide power. If power storage cells receive damage, Truck-B is to be evacuated and towed to Site 13-B.
More Important Information (Unrelated to SCP-3061):
4 new SCPs have been discovered at the construction site of Site 13-B classified as:
◾SCP-3193
◾SCP-3711
◾SCP-3062
◾SCP-3912

None is known of these new SCPs other then the fact that half are hostile and the other half is friendly. Research will begin shortly after completion of Site 13-B but until this time, currently these new SCPs will be contained at Site 17 until further notice.

No full drafts in the forums, please. Make a sandbox page, put your draft there, and link it from the thread. ~Zyn

Okay, uh… I'm going to be blunt here. It's very, very hard for me to take any of this seriously. Not only is there a lot of unprofessional wording like:

Due to wasting hours of time searching for the correct objects, scientists set up a secret projector in the wall to match that of a window and a painting, so far, SCP-3061 is not mad.

the SCP object itself is extremely overpowered and possesses a lot of narrative issues that make it a slog to read. You've got:

unnecessarily excessive (and convoluted) containment procedures

10 meters exactly is ridiculous. Not only is this a huge amount of space, the exact measurements don't seem to have a basis in containment reliability.

there's too much extra info about how the SCP object reacts to things. That's fluff—what the containment should be is succinct, simple instructions on how to keep the thing locked up. (That is, tell the audience "put this in the room" instead of going off on run-on sentences about how the SCP object reacts like this to this sort of item and like that to another sort of item, thus it's difficult, etc. etc.)

if the thing has a "weakness" (which is more of a video-game term than scientific), then the Foundation should exploit it. The thing is way too much trouble (the "demands" list is going to make people roll their eyes in skepticism) and it makes more sense to just keep it underwater and not worry about any demands.

edit: and much more, but I stopped reading after the first few sentences of the description.

You're not keeping the states straight — at one point you describe the "harmless" mood as "fine," and at another as "happy."

SCP documents don't use the second person — that is, addressing the reader as "you." They also generally don't use contractions, especially not informal ones like "must've."

You've expunged the creature's primary killing methods, which makes the piece feel really incomplete. All the details about what it likes, and the long timeline of inconsequential events, are not a good substitute for details about what it actually does (or why).

Overall, I don't feel like there's a purpose for this thing to exist. Its "moods" and its effects don't combine into a coherent whole, and there's no indication of what this presumably sapient being actually wants out of life.

You might want to get the concept straightened out in the Ideas and Brainstorming forum before you edit the draft again. It's better to make sure your idea is solid first so you're not losing time making draft fixes.